Date
July 11, 2025, 10:11 a.m.
| Environment | |
|---|---|
| e850-96 | |
| qemu-arm64 | |
| qemu-x86_64 |
[ 50.800644] ================================================================== [ 50.800829] BUG: KASAN: double-free in kmem_cache_double_free+0x190/0x3c8 [ 50.800958] Free of addr ffff000801b72000 by task kunit_try_catch/293 [ 50.802358] [ 50.803847] CPU: 4 UID: 0 PID: 293 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250711 #1 PREEMPT [ 50.803907] Tainted: [B]=BAD_PAGE, [N]=TEST [ 50.803925] Hardware name: WinLink E850-96 board (DT) [ 50.803949] Call trace: [ 50.803962] show_stack+0x20/0x38 (C) [ 50.804001] dump_stack_lvl+0x8c/0xd0 [ 50.804036] print_report+0x118/0x5d0 [ 50.804066] kasan_report_invalid_free+0xc0/0xe8 [ 50.804096] check_slab_allocation+0xd4/0x108 [ 50.804136] __kasan_slab_pre_free+0x2c/0x48 [ 50.804170] kmem_cache_free+0xf0/0x468 [ 50.804206] kmem_cache_double_free+0x190/0x3c8 [ 50.804242] kunit_try_run_case+0x170/0x3f0 [ 50.804280] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 50.804311] kthread+0x328/0x630 [ 50.804343] ret_from_fork+0x10/0x20 [ 50.804379] [ 50.876923] Allocated by task 293: [ 50.880312] kasan_save_stack+0x3c/0x68 [ 50.884131] kasan_save_track+0x20/0x40 [ 50.887947] kasan_save_alloc_info+0x40/0x58 [ 50.892202] __kasan_slab_alloc+0xa8/0xb0 [ 50.896193] kmem_cache_alloc_noprof+0x10c/0x398 [ 50.900794] kmem_cache_double_free+0x12c/0x3c8 [ 50.905308] kunit_try_run_case+0x170/0x3f0 [ 50.909474] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 50.914945] kthread+0x328/0x630 [ 50.918155] ret_from_fork+0x10/0x20 [ 50.921714] [ 50.923191] Freed by task 293: [ 50.926228] kasan_save_stack+0x3c/0x68 [ 50.930049] kasan_save_track+0x20/0x40 [ 50.933868] kasan_save_free_info+0x4c/0x78 [ 50.938033] __kasan_slab_free+0x6c/0x98 [ 50.941939] kmem_cache_free+0x260/0x468 [ 50.945846] kmem_cache_double_free+0x140/0x3c8 [ 50.950359] kunit_try_run_case+0x170/0x3f0 [ 50.954526] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 50.959995] kthread+0x328/0x630 [ 50.963206] ret_from_fork+0x10/0x20 [ 50.966765] [ 50.968242] The buggy address belongs to the object at ffff000801b72000 [ 50.968242] which belongs to the cache test_cache of size 200 [ 50.980656] The buggy address is located 0 bytes inside of [ 50.980656] 200-byte region [ffff000801b72000, ffff000801b720c8) [ 50.992201] [ 50.993678] The buggy address belongs to the physical page: [ 50.999234] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x881b72 [ 51.007218] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 51.014858] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 51.021801] page_type: f5(slab) [ 51.024936] raw: 0bfffe0000000040 ffff000801b70000 dead000000000122 0000000000000000 [ 51.032656] raw: 0000000000000000 00000000801f001f 00000000f5000000 0000000000000000 [ 51.040385] head: 0bfffe0000000040 ffff000801b70000 dead000000000122 0000000000000000 [ 51.048194] head: 0000000000000000 00000000801f001f 00000000f5000000 0000000000000000 [ 51.056007] head: 0bfffe0000000001 fffffdffe006dc81 00000000ffffffff 00000000ffffffff [ 51.063819] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 51.071627] page dumped because: kasan: bad access detected [ 51.077180] [ 51.078655] Memory state around the buggy address: [ 51.083435] ffff000801b71f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 51.090639] ffff000801b71f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 51.097845] >ffff000801b72000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 51.105045] ^ [ 51.108260] ffff000801b72080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 51.115465] ffff000801b72100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 51.122667] ==================================================================
[ 30.982789] ================================================================== [ 30.982883] BUG: KASAN: double-free in kmem_cache_double_free+0x190/0x3c8 [ 30.982962] Free of addr fff00000c9a00000 by task kunit_try_catch/240 [ 30.983006] [ 30.983054] CPU: 1 UID: 0 PID: 240 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250711 #1 PREEMPT [ 30.983235] Tainted: [B]=BAD_PAGE, [N]=TEST [ 30.983553] Hardware name: linux,dummy-virt (DT) [ 30.984034] Call trace: [ 30.984075] show_stack+0x20/0x38 (C) [ 30.984517] dump_stack_lvl+0x8c/0xd0 [ 30.984578] print_report+0x118/0x5d0 [ 30.984972] kasan_report_invalid_free+0xc0/0xe8 [ 30.985056] check_slab_allocation+0xd4/0x108 [ 30.985222] __kasan_slab_pre_free+0x2c/0x48 [ 30.985608] kmem_cache_free+0xf0/0x468 [ 30.985750] kmem_cache_double_free+0x190/0x3c8 [ 30.985807] kunit_try_run_case+0x170/0x3f0 [ 30.985861] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.985914] kthread+0x328/0x630 [ 30.985959] ret_from_fork+0x10/0x20 [ 30.986703] [ 30.986727] Allocated by task 240: [ 30.986764] kasan_save_stack+0x3c/0x68 [ 30.986990] kasan_save_track+0x20/0x40 [ 30.987182] kasan_save_alloc_info+0x40/0x58 [ 30.987453] __kasan_slab_alloc+0xa8/0xb0 [ 30.987496] kmem_cache_alloc_noprof+0x10c/0x398 [ 30.987538] kmem_cache_double_free+0x12c/0x3c8 [ 30.987582] kunit_try_run_case+0x170/0x3f0 [ 30.988254] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.988372] kthread+0x328/0x630 [ 30.988469] ret_from_fork+0x10/0x20 [ 30.988742] [ 30.988765] Freed by task 240: [ 30.989035] kasan_save_stack+0x3c/0x68 [ 30.989083] kasan_save_track+0x20/0x40 [ 30.989504] kasan_save_free_info+0x4c/0x78 [ 30.989665] __kasan_slab_free+0x6c/0x98 [ 30.989753] kmem_cache_free+0x260/0x468 [ 30.990038] kmem_cache_double_free+0x140/0x3c8 [ 30.990088] kunit_try_run_case+0x170/0x3f0 [ 30.990232] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.990282] kthread+0x328/0x630 [ 30.990494] ret_from_fork+0x10/0x20 [ 30.990716] [ 30.990737] The buggy address belongs to the object at fff00000c9a00000 [ 30.990737] which belongs to the cache test_cache of size 200 [ 30.991160] The buggy address is located 0 bytes inside of [ 30.991160] 200-byte region [fff00000c9a00000, fff00000c9a000c8) [ 30.991238] [ 30.991264] The buggy address belongs to the physical page: [ 30.991536] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109a00 [ 30.991863] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 30.991926] page_type: f5(slab) [ 30.991979] raw: 0bfffe0000000000 fff00000c3e18500 dead000000000122 0000000000000000 [ 30.992031] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 30.992074] page dumped because: kasan: bad access detected [ 30.992107] [ 30.992124] Memory state around the buggy address: [ 30.992157] fff00000c99fff00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 30.992200] fff00000c99fff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 30.993257] >fff00000c9a00000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 30.993412] ^ [ 30.993463] fff00000c9a00080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 30.993698] fff00000c9a00100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.993901] ==================================================================
[ 24.459201] ================================================================== [ 24.459697] BUG: KASAN: double-free in kmem_cache_double_free+0x1e5/0x480 [ 24.460546] Free of addr ffff888106115000 by task kunit_try_catch/259 [ 24.460818] [ 24.461241] CPU: 1 UID: 0 PID: 259 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250711 #1 PREEMPT(voluntary) [ 24.461464] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.461479] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 24.461502] Call Trace: [ 24.461517] <TASK> [ 24.461538] dump_stack_lvl+0x73/0xb0 [ 24.461575] print_report+0xd1/0x610 [ 24.461599] ? __virt_addr_valid+0x1db/0x2d0 [ 24.461625] ? kasan_complete_mode_report_info+0x64/0x200 [ 24.461655] ? kmem_cache_double_free+0x1e5/0x480 [ 24.461680] kasan_report_invalid_free+0x10a/0x130 [ 24.461704] ? kmem_cache_double_free+0x1e5/0x480 [ 24.461746] ? kmem_cache_double_free+0x1e5/0x480 [ 24.461772] check_slab_allocation+0x101/0x130 [ 24.461794] __kasan_slab_pre_free+0x28/0x40 [ 24.461814] kmem_cache_free+0xed/0x420 [ 24.461839] ? kmem_cache_alloc_noprof+0x123/0x3f0 [ 24.461863] ? kmem_cache_double_free+0x1e5/0x480 [ 24.461889] kmem_cache_double_free+0x1e5/0x480 [ 24.461912] ? __pfx_kmem_cache_double_free+0x10/0x10 [ 24.461935] ? finish_task_switch.isra.0+0x153/0x700 [ 24.461959] ? __switch_to+0x47/0xf80 [ 24.461989] ? __pfx_read_tsc+0x10/0x10 [ 24.462012] ? ktime_get_ts64+0x86/0x230 [ 24.462038] kunit_try_run_case+0x1a5/0x480 [ 24.462063] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.462083] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 24.462108] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 24.462131] ? __kthread_parkme+0x82/0x180 [ 24.462152] ? preempt_count_sub+0x50/0x80 [ 24.462174] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.462196] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.462221] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 24.462246] kthread+0x337/0x6f0 [ 24.462285] ? trace_preempt_on+0x20/0xc0 [ 24.462310] ? __pfx_kthread+0x10/0x10 [ 24.462331] ? _raw_spin_unlock_irq+0x47/0x80 [ 24.462353] ? calculate_sigpending+0x7b/0xa0 [ 24.462378] ? __pfx_kthread+0x10/0x10 [ 24.462400] ret_from_fork+0x116/0x1d0 [ 24.462428] ? __pfx_kthread+0x10/0x10 [ 24.462450] ret_from_fork_asm+0x1a/0x30 [ 24.462481] </TASK> [ 24.462494] [ 24.474671] Allocated by task 259: [ 24.474873] kasan_save_stack+0x45/0x70 [ 24.475039] kasan_save_track+0x18/0x40 [ 24.475443] kasan_save_alloc_info+0x3b/0x50 [ 24.475743] __kasan_slab_alloc+0x91/0xa0 [ 24.475923] kmem_cache_alloc_noprof+0x123/0x3f0 [ 24.476136] kmem_cache_double_free+0x14f/0x480 [ 24.476343] kunit_try_run_case+0x1a5/0x480 [ 24.476899] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.477110] kthread+0x337/0x6f0 [ 24.477569] ret_from_fork+0x116/0x1d0 [ 24.477712] ret_from_fork_asm+0x1a/0x30 [ 24.478077] [ 24.478172] Freed by task 259: [ 24.478592] kasan_save_stack+0x45/0x70 [ 24.478878] kasan_save_track+0x18/0x40 [ 24.479077] kasan_save_free_info+0x3f/0x60 [ 24.479627] __kasan_slab_free+0x56/0x70 [ 24.479945] kmem_cache_free+0x249/0x420 [ 24.480103] kmem_cache_double_free+0x16a/0x480 [ 24.480657] kunit_try_run_case+0x1a5/0x480 [ 24.480909] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.481225] kthread+0x337/0x6f0 [ 24.481431] ret_from_fork+0x116/0x1d0 [ 24.481950] ret_from_fork_asm+0x1a/0x30 [ 24.482091] [ 24.482409] The buggy address belongs to the object at ffff888106115000 [ 24.482409] which belongs to the cache test_cache of size 200 [ 24.482931] The buggy address is located 0 bytes inside of [ 24.482931] 200-byte region [ffff888106115000, ffff8881061150c8) [ 24.483391] [ 24.483488] The buggy address belongs to the physical page: [ 24.483716] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106115 [ 24.484048] flags: 0x200000000000000(node=0|zone=2) [ 24.484279] page_type: f5(slab) [ 24.484924] raw: 0200000000000000 ffff8881015903c0 dead000000000122 0000000000000000 [ 24.485212] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 24.485756] page dumped because: kasan: bad access detected [ 24.486220] [ 24.486321] Memory state around the buggy address: [ 24.486702] ffff888106114f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.487163] ffff888106114f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.487676] >ffff888106115000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.488111] ^ [ 24.488516] ffff888106115080: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc [ 24.488822] ffff888106115100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.489218] ==================================================================